session_dgram_hdr_t * hdr,
vlib_buffer_t * b, u8 proto, u8 queue_event)
{
- int enqueued = 0, rv, in_order_off;
+ int rv;
ASSERT (svm_fifo_max_enqueue_prod (s->rx_fifo)
>= b->current_length + sizeof (*hdr));
- svm_fifo_enqueue (s->rx_fifo, sizeof (session_dgram_hdr_t), (u8 *) hdr);
- enqueued = svm_fifo_enqueue (s->rx_fifo, b->current_length,
- vlib_buffer_get_current (b));
- if (PREDICT_FALSE ((b->flags & VLIB_BUFFER_NEXT_PRESENT) && enqueued >= 0))
+ if (PREDICT_TRUE (!(b->flags & VLIB_BUFFER_NEXT_PRESENT)))
{
- in_order_off = enqueued > b->current_length ? enqueued : 0;
- rv = session_enqueue_chain_tail (s, b, in_order_off, 1);
- if (rv > 0)
- enqueued += rv;
+ /* *INDENT-OFF* */
+ svm_fifo_seg_t segs[2] = {
+ { (u8 *) hdr, sizeof (*hdr) },
+ { vlib_buffer_get_current (b), b->current_length }
+ };
+ /* *INDENT-ON* */
+
+ rv = svm_fifo_enqueue_segments (s->rx_fifo, segs, 2,
+ 0 /* allow_partial */ );
}
- if (queue_event)
+ else
+ {
+ vlib_main_t *vm = vlib_get_main ();
+ svm_fifo_seg_t *segs = 0, *seg;
+ vlib_buffer_t *it = b;
+ u32 n_segs = 1;
+
+ vec_add2 (segs, seg, 1);
+ seg->data = (u8 *) hdr;
+ seg->len = sizeof (*hdr);
+ while (it)
+ {
+ vec_add2 (segs, seg, 1);
+ seg->data = vlib_buffer_get_current (it);
+ seg->len = it->current_length;
+ n_segs++;
+ if (!(it->flags & VLIB_BUFFER_NEXT_PRESENT))
+ break;
+ it = vlib_get_buffer (vm, it->next_buffer);
+ }
+ rv = svm_fifo_enqueue_segments (s->rx_fifo, segs, n_segs,
+ 0 /* allow partial */ );
+ vec_free (segs);
+ }
+
+ if (queue_event && rv > 0)
{
/* Queue RX event on this fifo. Eventually these will need to be flushed
* by calling stream_server_flush_enqueue_events () */
session_fifo_tuning (s, s->rx_fifo, SESSION_FT_ACTION_ENQUEUED, 0);
}
- return enqueued;
+ return rv > 0 ? rv : 0;
}
int
return rv;
}
+ session_lookup_add_connection (tc, session_handle (s));
+
app_wrk = app_worker_get (s->app_wrk_index);
if ((rv = app_worker_accept_notify (app_wrk, s)))
{
+ session_lookup_del_session (s);
segment_manager_dealloc_fifos (s->rx_fifo, s->tx_fifo);
session_free (s);
return rv;
}
s->session_state = SESSION_STATE_READY;
- session_lookup_add_connection (tc, session_handle (s));
return 0;
}
/**
* Allocate event queues in the shared-memory segment
*
- * That can either be a newly created memfd segment, that will need to be
- * mapped by all stack users, or the binary api's svm region. The latter is
- * assumed to be already mapped. NOTE that this assumption DOES NOT hold if
- * api clients bootstrap shm api over sockets (i.e. use memfd segments) and
- * vpp uses api svm region for event queues.
+ * That can only be a newly created memfd segment, that must be
+ * mapped by all apps/stack users.
*/
void
session_vpp_event_queues_allocate (session_main_t * smm)
if (smm->configured_event_queue_length)
evt_q_length = smm->configured_event_queue_length;
- if (smm->evt_qs_use_memfd_seg)
- {
- if (smm->evt_qs_segment_size)
- eqs_size = smm->evt_qs_segment_size;
+ if (smm->evt_qs_segment_size)
+ eqs_size = smm->evt_qs_segment_size;
- eqs->ssvm_size = eqs_size;
- eqs->my_pid = vpp_pid;
- eqs->name = format (0, "%s%c", "session: evt-qs-segment", 0);
- /* clib_mem_vm_map_shared consumes first page before requested_va */
- eqs->requested_va = smm->session_baseva + clib_mem_get_page_size ();
+ eqs->ssvm_size = eqs_size;
+ eqs->my_pid = vpp_pid;
+ eqs->name = format (0, "%s%c", "session: evt-qs-segment", 0);
+ /* clib_mem_vm_map_shared consumes first page before requested_va */
+ eqs->requested_va = smm->session_baseva + clib_mem_get_page_size ();
- if (ssvm_server_init (eqs, SSVM_SEGMENT_MEMFD))
- {
- clib_warning ("failed to initialize queue segment");
- return;
- }
+ if (ssvm_server_init (eqs, SSVM_SEGMENT_MEMFD))
+ {
+ clib_warning ("failed to initialize queue segment");
+ return;
}
- if (smm->evt_qs_use_memfd_seg)
- oldheap = ssvm_push_heap (eqs->sh);
- else
- oldheap = vl_msg_push_heap ();
+ oldheap = ssvm_push_heap (eqs->sh);
for (i = 0; i < vec_len (smm->wrk); i++)
{
cfg->q_nitems = evt_q_length;
cfg->ring_cfgs = rc;
smm->wrk[i].vpp_event_queue = svm_msg_q_alloc (cfg);
- if (smm->evt_qs_use_memfd_seg)
- {
- if (svm_msg_q_alloc_consumer_eventfd (smm->wrk[i].vpp_event_queue))
- clib_warning ("eventfd returned");
- }
+ if (svm_msg_q_alloc_consumer_eventfd (smm->wrk[i].vpp_event_queue))
+ clib_warning ("eventfd returned");
}
- if (smm->evt_qs_use_memfd_seg)
- ssvm_pop_heap (oldheap);
- else
- vl_msg_pop_heap (oldheap);
+ ssvm_pop_heap (oldheap);
}
ssvm_private_t *
session_main_get_evt_q_segment (void)
{
- session_main_t *smm = &session_main;
- if (smm->evt_qs_use_memfd_seg)
- return &smm->evt_qs_segment;
- return 0;
+ return &session_main.evt_qs_segment;
}
u64
session_worker_t *wrk;
int i;
+ /* We only initialize once and do not de-initialized on disable */
+ if (smm->is_initialized)
+ goto done;
+
num_threads = 1 /* main thread */ + vtm->n_threads;
if (num_threads < 1)
session_lookup_init ();
app_namespaces_init ();
transport_init ();
+ smm->is_initialized = 1;
+
+done:
smm->is_enabled = 1;
return 0;
}
+static void
+session_manager_main_disable (vlib_main_t * vm)
+{
+ transport_enable_disable (vm, 0 /* is_en */ );
+}
+
void
session_node_enable_disable (u8 is_en)
{
foreach_vlib_main (({
if (have_workers && ii == 0)
{
- vlib_node_set_state (this_vlib_main, session_queue_process_node.index,
- state);
if (is_en)
{
+ vlib_node_set_state (this_vlib_main,
+ session_queue_process_node.index, state);
vlib_node_t *n = vlib_get_node (this_vlib_main,
session_queue_process_node.index);
vlib_start_process (this_vlib_main, n->runtime_index);
else
{
session_main.is_enabled = 0;
+ session_manager_main_disable (vm);
session_node_enable_disable (is_en);
}
else if (unformat (input, "local-endpoints-table-buckets %d",
&smm->local_endpoints_table_buckets))
;
+ /* Deprecated but maintained for compatibility */
else if (unformat (input, "evt_qs_memfd_seg"))
- smm->evt_qs_use_memfd_seg = 1;
+ ;
else if (unformat (input, "evt_qs_seg_size %U", unformat_memory_size,
&smm->evt_qs_segment_size))
;
else if (unformat (input, "enable"))
smm->session_enable_asap = 1;
+ else if (unformat (input, "segment-baseva 0x%lx", &smm->session_baseva))
+ ;
else if (unformat (input, "use-app-socket-api"))
appns_sapi_enable ();
else
Code Review / vpp.git / blobdiff